Cade

A person who reveals or spoils a magic trick for others while you are performing the trick.

Kid 1: Ok now I want you to pick a card.

Now look at it and don't let me see it.
Kid 2: I saw that steal you did there.
Kid 3: OMG. Piss off you just did a cade on us, way to ruin the trick for everyone.

by ZeroShiftXZ August 18, 2011